Biology, asked by manav200429, 11 months ago

how do fishes endure mixing of blood?

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Answers

Answered by da4886964

Answer:

At the same time, oxygenated blood from the lungs flows from the pulmonary vein into the left atrium. The muscles of both atria contract, forcing blood downward through each AV valve into each ventricle. Diastole is the filling of the ventricles with blood.

Explanation:

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